X0306 4 2018-06-15 0 0001404655 HUBSPOT INC HUBS 0001344702 Sherman J Donald C/O HUBSPOT, INC. 25 FIRST STREET, 2ND FLOOR CAMBRIDGE MA 02141 0 1 0 0 President and COO Common Stock 2018-06-15 4 M 0 25000 5.76 A 119823 D Common Stock 2018-06-15 4 S 0 2100 131.10 D 117723 D Common Stock 2018-06-15 4 S 0 1400 132.23 D 116323 D Common Stock 2018-06-15 4 S 0 4091 133.50 D 112232 D Common Stock 2018-06-15 4 S 0 6318 134.62 D 105914 D Common Stock 2018-06-15 4 S 0 7400 135.56 D 98514 D Common Stock 2018-06-15 4 S 0 3691 136.22 D 94823 D Employee Stock Option (right to buy) 5.76 2018-06-15 4 M 0 25000 0.00 D 2022-05-08 Common Stock 25000 383223 D This transaction was effected pursuant to a written trading plan adopted by the Reporting Person in accordance with Rule 10b5-1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $130.65 to $131.40, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $132.00 to $132.70, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $133.03 to $134.00, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $134.03 to $135.00, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $135.05 to $136.00, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $136.05 to $136.55, inclusive. The reporting person undertakes to provide to HubSpot, Inc., any security holder of HubSpot, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) through (7) herein. The original stock option grant of 532,666 shares underlying the option vests over four (4) years beginning on March 1, 2012 at a rate of 25% after 12 months and in thirty-six (36) equal monthly installments thereafter. /s/ John P. Kelleher, attorney-in-fact 2018-06-18